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Showing 1 to 20 of 56 for “"Hypocotyl"”.
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A Multi-level Mechanical Study of Hypocotyl Growth in the Dark
Dark-grown hypocotyls of Arabidopsis thaliana exhibit a striking wave of cell elongation which moves acropetally from the base to the tip of the organ over time. The combined effect of this wave of cell elongation is a pattern of organ elongation. It was aimed to understand the coordination of …
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The Effect of 2,4-Dichlorophenoxyacetic Acid Upon The Metabolism and Composition of Soybean Hypocotyl Mitochondria
Made available in DSpace on 2014-12-10T17:12:34Z (GMT). No. of bitstreams: 1 6808024.pdf: 3649867 bytes, checksum: b7ef210b75bb54b9cc7d63d5c703fa35 (MD5) Previous issue date: 1967
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The effect of gibberellic acid and AMO-1618 on chromatin ribonucleic acid polymerase in soybean hypocotyl tissue.
Dept. of Biological Sciences. Paper copy at Leddy Library: Theses & Major Papers - Basement, West Bldg. / Call Number: Thesis1971 .H76. Source: Masters Abstracts International, Volume: 40-07, page: . Thesis (M.Sc.)--University of Windsor (Canada), 1972.
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COMPARATIVE EFFECTS OF GIBBERELLIC ACID AND N(6)-BENZYLADENINE ON GROWTH AND DEVELOPMENT OF DWARF WATERMELON SEEDLINGS
… gibberellic acid (GA) significantly enhanced hypocotyl elongation in intact dwarf watermelon seedlings. Accompanying the increase in hypocotyl length was increased expansion of the cotyledons and inhibition of root growth. A study on dry matter partitioning indicated that both hormones caused …
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Natural Variation in Arabidopsis thaliana Growth in Response to Ambient Temperatures
… elongation of the Arabidopsis thaliana hypocotyls (seedling stems) is a well-characterised environmental response. The aim of this study was to identify allelic variants underlying Quantitative Trait Loci (QTL) responsible for the natural genetic variation of hypocotyl length in response …
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Investigation on gravity sensing in garden cress seedlings /
The peculiarities of gravisensing of hypocotyls and roots of the same seedling for the first time were compared under different gravistimulation conditions. Indirect experimental method, i.e. quantitative analysis of the dependence of amyloplast statics and kinetics on the direction and magnitude …
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Effect of desiccation and storage on the seeds of two related species in the Amaryllidaceae from the western Cape Province
… regular intervals and the ultrastructure of the hypocotyl apex tissue was examined. Both species are shed at high moisture content in a metabolically active state, and are able to tolerate considerable loss of this water (420-120% for B.flava) before water contents became lethal. Nevertheless, …
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Regulation of de-etiolation and stomatal opening responses by HYPOSENSITIVE TO LIGHT and HYPERSENSITIVE TO RED AND BLUE 1.
… TO LIGHT or HTL. htl mutants displayed a long hypocotyl phenotype under red, far-red, and blue light, as well as other photomorphogenic defects. HTL belongs to an alpha/beta fold protein family and is localized predominantly in the nucleus. ELONGATED HYPOCOTYL5 (HY5), a BZip transcription …
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Phosphate nutrition in the Ricinus communis L. seedling
… (Pi) was detected from the cotyledons to the hypocotyl, in particular to its apical hook near the cotyledons, suggesting that Pi moves from the Ricinus communis L. cotyledons through the hypocotyl via phloem and partially re-circulates in the xylem or leaks out through the roots. Therefore …
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Towards plastid transformation in rapeseed (Brassica napus L.) and sugarbeet (Beta vulgaris L.)
… regeneration from protoplasts isolated from hypocotyl derived callus was successfully developed. While no shoot regeneration was observed from guard cell protoplasts in our experiments, plant regeneration (efficiencies up to 30%) from callus protoplasts could be achieved for the first time in …
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Characterization of eid3 and the putative rei mutants : new insights on Phytochrome A signaling
… type, fluence rate response curves analysis for hypocotyl elongation and anthocyanin accumulation were determined. Under far-red light conditions both responses were affected which are typical high irradiance responses (HIR). In regard to hypocotyl elongation, the sensitivity was increased by one …
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Generation of Transgenic <i>Medicago Sativa</i> Overexpressing "<i>Osmotin-Chitinase</i>" Gene Chimera
… experiments. Different explants (cotyledons, hypocotyls, petioles) were tested for regeneration. Among these, hypocotyl explants showed highest (46.17 %) percent regeneration. <i>Escherichia coli</i> harboring <i>Osmotin-Chitinase</i> (<i>OSM-CHI</i>) gene chimera cloned into binary vector …
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Regeneration mechanisms in Swamp Paperbark (Melaleuca ericifolia Sm.) and their implications for wetland rehabilitation
… were carried out on secondary structures, hypocotyl hairs, which were shown to influence establishment success of seedlings. The conditions found ideal for germination proved to be suitable for hypocotyl hair formation. Field and laboratory studies were carried out to determine the …
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Pengaruh konsentrasi dan lama perendaman dalam asam sulfat (H2SO4) terhadap perkecambahan benih saga pohon (Adenanthera pavonina L.)
… can increase the percentage of germination and hypocotyl length, whereas the concentration of K4 (80%) can increase the rate of germination. And the most effective long soaking was L3 (25 minutes) that was able to increase Tree Saga seed germination on all parameters that included germination …
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Is Alnus viridis 'a' glacial relict in the Black Forest ?
… habitat conditions. Flavonoid induction in the hypocotyl is under control of short-wavelength light. The most important photoreceptor seems to be the UV-B receptor, whose action is complemented by UV-A/BL receptor(s). Phytochromes are not involved. A similar result is observed for the …
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Tissue and Cell-Type Localization and Partial Characterization of a Xylem Papain-Type Cysteine Protease From Arabidopsis
… of xylem and bark protein extracted from root-hypocotyl segments demonstrated that XCP1 was expressed in xylem only. Further analysis under optimized immunoblot conditions, however, revealed that anti-XCP1 antibody reacted with protein present in both xylem and bark. The vast majority of …
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Quantitative investigations of Fusarium oxysporum and F. solani colonization and rot of Glycine max cv. essex seedlings
… isolated from lesions on Essex cotyledons and hypocotyls at all three temperatures. Rhizoctonia so/ani was isolated with highest frequency from hypocotyl lesions at 25 C. Colonization of soybean plant parts by F. oxysporum and F. solani in P. Minor soil was studied by plating asymptomatic, …
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Regeneration and germination of cucumber seeds in vitro and a study of delayed flowering gene (df)
… cucumber seed increased root number, length and hypocotyl growth. To develop an efficient cotyledon regeneration system, shoot regeneration from 1/6, 1/4, 1/2, 3/4 cotyledon segments was compared with shoot regeneration frequency of full cotyledon. It was found that shoot regeneration efficiency …
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In situ studies of sugar metabolism in Ricinus communis L. and Saccharum officinarum L.
… expression of RcSCR1 is found in the endosperm, hypocotyl and cotyledons of the Ricinus communis L. germinating seeds. By northern blot analysis of the RNA from different days old endosperm, it indicates that the RcSCR1 has a highest expression level at day 5. By in situ hybridization and …
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